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Example VerticalsPurchase FrequencyCriteria for Frequency
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Multi-cate - Marketplace
- Cosmetics
- Electronics
- MKB (mom, kid, baby)
...		High1. Channel Engagement
2. Purchase Count (optional)
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Single-cate- Travel (Airlines, Hotel, ...)
- Jewelry
...		Low1. Purchase Recency
2. Channel Engagement
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